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“There’s something for everyone here. . . . You can pick up and read this book and build an industry-standard system in a weekend: It has everything you need to get started with a new project. I also found it helpful in reviewing the structure of existing projects.”

—Timothy Pratley, developer

Developers are discovering the exceptional power of Clojure’s functional programming model to quickly solve problems in domains ranging from social networking to Big Data. Clojure is fast and efficient—ideal for rapid prototyping and lean development. And it is highly expressive and extremely extensible, which makes Clojure one of today’s leading tools for software innovation. Since it targets the Java Virtual Machine, Clojure also leverages the Java platform’s maturity and enormous ecosystem.

Clojure Recipes is a wide-ranging, up-to-date “code recipe book” for this increasingly popular language. With practical and self-contained examples, author Julian Gamble illuminates Clojure’s key features and best practices, showing how to solve real-world problems one step at a time. Focusing on Clojure 1.7 and higher, Gamble fully reflects recent enhancements that ensure you’re getting the most up-to-date code for your project.

Gamble first walks you through the essential steps required to set up your Clojure development environment, from setting up the Leiningen build tool to packaging Clojure for Java EE environments. He then shows you how to build both basic and advanced REST servers, before turning to a wide range of increasingly sophisticated applications.

In this book you will find

Innovative Clojure code for diverse web, security, administration, and development tasks, from log reading and app monitoring to software testing

Detailed instructions for using concurrency primitives, writing new DSLs, simplifying cloud database development, and more

Coverage of using Clojure with Cascalog 2.0 to write complex Hadoop queries with minimal code

The breadth and quality of Gamble’s examples make Clojure Recipes uniquely valuable both to developers who are exploring Clojure for the first time and to those already using it in production.

Julian Gamble (Sydney, Australia) is a software engineer who has worked in the financial services industry for more than a decade. When he's not enabling billions of dollars to orbit the globe, he writes and presents on all things software related at juliangamble.com/blog.